August leopold schaab



(No Model.)

A, L. SCHAAR.

AGGDRDION.

'Patterned Mar. l18, 1884.I

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AUGUST LEOPOLD SCHAAR, OE CHICAGO, ILLINOIS, ASSIGNOB OF ONE-HALF TO THE BOOT 8: SONS MUSIC COMPANY, OFy SAME PLACE.

ACCORDION.

SPECIFICATION forming part of Letters Patent No. 295,288, dated March 18, 1884. Application filed September 27, 1883. (No model.) Patented in Germany May 6, 1852, No. $21,611.

.To all whom t may concern.-

Be it known that I, AUGUsr Lnoronn SCHAAR, a citizen of the United States of America, residing in Chicago, in the county of Cook and State of Illinois, have invented certain .new and useful Improvements in Accordions and Analogous Keyed Musical Instruments, of which the following, in connection with the accompanying drawings, is a specification.

In the drawings, Figure 1 is a top view of an accordion embodying my invention. Fig. 2 is a bottom View of the same, and Fig. 3 is a central cross-section thereof. l

Like letters of reference indicate like parts.

My invention relates chiefly to the means employed for rendering the keys or fingerlevers yielding. It also consists in certain other features of construction, all of which will be hereinafter fully described, and the essential features of my invention will be particularly set forth in my claims.

A represents the toppiece, below which are arranged the reeds and the bellows or eXtensible and compressible air-chamber and its supplemental keys and valves. As my invention relates chiefly to the means employed for rendering the valves and their levers yielding, I have only shown with particularity the parts appertaining to and immediately in connection with and including the said means.l

B B are the valve-openings, and C C are the valves.

D is the key-board, and E E are the keys.

.The keys are arranged in recesses F F in the key-board, and are supported on a rod or wire, G, passing through them and longitudinally through the keyboard. In other words, the keys which, mechanically considered, are levers, are fulcrumed on the rod or wire G, which is removable.

H H are wires or arms connecting the valves C C to the keys E E.

The features of construction thus far described have heretofore been commonly employed, and the usual way of rendering the keys yielding has been by separate springs behind each key in the recess ofthe key-board.

The arms II II are connected rigidly to the keys E E, and the said arms and keys consti-- tute rigid angle-levers for operating the valves.

to the said molding or frame, and extending underneath the rear or free ends of the arms or wires H H; but these springs may also be attached directly to the top piece, A, being formed to allow their free ends to yield under the pressure exerted upon the keys while the 65 instrument is being played, as will hereinafter more fully appear. rIhe molding or frame A, however, not only gives a finished appearance totheinstrument, but also serves to support thenkeys somewhat above the part A, so that their free ends may yield sufficiently for the purpose for which they are intended. The springsI I havesufficient force to hold the valves C C down yigeldingly upon the valveopenings. raised in the usual manner, and they will loe closed automatically by means of the springs I I when the pressure is removed from the keys.

It will be perceived from the foregoing description and from reference to the drawings that the springs I I are located where they are much more accessible than if they were arranged in the board l) and behind the keys E E, as heretofore. rIhey may also loe applied and removed or repaired with greater facility, and-less expense is involved in their construction and application.

The air-valve and base or supplemental keys may also be combined with springs I I in the manner already described, and as indicated in Figs. 2 and 3.

It is obvious that these improvements may be employed with advantage to lsimilar instruments-for instance, such as concertinas.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. rIlhe combination, substantially as specified, of the valves, the keys E E, the arms H H, connected rigidly to the said keys, and also connected to the valves, and the external By this means the valves may be 7 5 IOO l I M.

springs, I I, all arranged substantially as shown and described with relation to each other and the key-board, for the purposes set forth.

2. The combination ofthe valves C C, rigid angledevers E II, connected to the valves, theV parts I-I H passing` through the parts Il E and 'forming extensions a (t upon the keys, the springs I I, bearing` on the said extensions, and the key-board, substantially as and for the purposes set forth.

3. The combination of the top piece, A, the `frame or molding A, the key-board D, valves C C, arms II II, keys E E, and springs I, the said keys and arms forming rigid angle-levers I 5 connected to the valves, and the said springs being arranged horizontally outside of the keyboard and bearing on the said. levers, substantially as and for thepurposes specified.

In testimony that I elaiin the foregoing,1 as my own, I have affixed my signature in presence of two Witnesses.

AUG-UST LEOPOLD SCI-[A s-XR. \\'itnesses:

F. F. VAIRNER, J. B. I-IALPENNY. 

